220172880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2243}}^1$

素因数の和:2668

約数の個数: 80

約数和(自身を含む): 684509760

約数和(自身を除く): 464336880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 409, 818, 1227, 1636, 2045, 2243, 2454, 3272, 4090, 4486, 4908, 6135, 6544, 6729, 8180, 8972, 9816, 11215, 12270, 13458, 16360, 17944, 19632, 22430, 24540, 26916, 32720, 33645, 35888, 44860, 49080, 53832, 67290, 89720, 98160, 107664, 134580, 179440, 269160, 538320, 917387, 1834774, 2752161, 3669548, 4586935, 5504322, 7339096, 9173870, 11008644, 13760805, 14678192, 18347740, 22017288, 27521610, 36695480, 44034576, 55043220, 73390960, 110086440, 220172880]

約数ペア:

[(1, 220172880), (2, 110086440), (3, 73390960), (4, 55043220), (5, 44034576), (6, 36695480), (8, 27521610), (10, 22017288), (12, 18347740), (15, 14678192), (16, 13760805), (20, 11008644), (24, 9173870), (30, 7339096), (40, 5504322), (48, 4586935), (60, 3669548), (80, 2752161), (120, 1834774), (240, 917387), (409, 538320), (818, 269160), (1227, 179440), (1636, 134580), (2045, 107664), (2243, 98160), (2454, 89720), (3272, 67290), (4090, 53832), (4486, 49080), (4908, 44860), (6135, 35888), (6544, 33645), (6729, 32720), (8180, 26916), (8972, 24540), (9816, 22430), (11215, 19632), (12270, 17944), (13458, 16360)]